The 5-liter oxygen generator from Drive DeVilbiss is a home and medical device made in the USA. It pumps oxygen with a high concentration ranging from 87% to 96% and a flow rate of up to 5 liters per minute. Key Technical Specifications: Flow Rate: 0.5 to 5 liters/minute. Concentration: 93% (± 3%). Weight: 16.3 kg. Dimensions: 62.2 × 34.2 × 30.4 cm. Power Consumption: Approximately 312 watts at full flow. Country of Origin: 100% American. Device Features: Smart OSD Technology: Internal sensor to continuously monitor oxygen purity level to ensure patient safety. Quiet Operation: Internal design that reduces noise and vibration levels compared to other devices. Integrated Safety Systems: Visual and audible alarms for power outages, low pressure, or low oxygen concentration. Durable Practical Structure: Equipped with wheels and handles for easy movement and transport within the home.